Abstract

A sample holder for high temperaturemeasurements in superconducting quantum interference devicemagnetometers is presented. It is fabricated using aluminum foil and it is appropriate for samples in either solid or powder form. The holder is homogeneous for the gradiometer coil, and this results in a contribution to the background signal that is below the instrument noise at any field ( at ). Further it is inexpensive and simple to fabricate, and it can be considered as a disposable sample holder that avoids eventual contamination between different samples.

Received 10 January 2007Accepted 04 March 2007Published online 02 April 2007

Acknowledgments:

The authors would like to thank the Spanish Ministry of Education and Science through the “Ramon y Cajal” Program, Project No. MAT 2005/01272 and project “Renovación y ampliación del Servicio de Medidas Magnéticas,” University of Zaragoza-CSIC (PAI 2004), for the financial support.